(19741) Callahan Main-belt Asteroid
Discovered on 5 January 2000 by LINEAR at Socorro.
Diane Callahan mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, a middle school science competition. She teaches at the Fairfield Middle School, Fairfield, Ohio.Naming citation (20031010/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
👶 Callahan as a baby name🐶 Callahan as a dog name
Where Callahan is today
Seen from above the solar system on 2026-10-14: Callahan is 2.12 au from the Sun and 2.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19741 |
| Provisional designation | 2000 AN141 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.88 km (#13,043 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.224 |
| Rotation period | 7.27 hours |
| Absolute magnitude (H) | 14.6 |
| Orbital period | 3.37 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.96 – 2.54 au |
| Eccentricity | 0.130 |
| Inclination | 8.05° |
| Closest distance between its orbit and Earth's (MOID) | 0.969 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Diane
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- (14153) Dianecaplain
- (14275) Dianemurray
- (17241) Wooden
- (18077) Dianeingrao
- (18184) Dianepark
- (22171) Choi
- (28331) Dianeberard
- (33004) Dianesipiera
- (129167) Dianelambert
- (262825) Dianearbus
All asteroids named after someone called Diane
Also discovered on 5 January 2000
- (14258) Katrinaminck
- (14262) Kratzer
- (14693) Selwyn
- (15099) Janestrohm
- (15530) Kuber
- (15531) Matusch
- (15533) Saturnino
- (16157) Toastmasters
- (16158) Monty
- (16163) Suhanli
- (16164) Yangli
- (16165) Licht